`bfconvert` to DICOM writes too much on a DS ValueType field

[arngaillard]

Hi,

This is an issue related to this one on libdicom (ImagingDataCommons/libdicom#105).

Basically, converting a file to .dcm with bfconvert produces a file that libdicom is unable to open due to PixelSpacing being too long.

I was advised to also open an issue here, on top of the one already opened, please tell me if this isn't the right place to.

Best regards,
Arnaud

[fedorov]

Specifically, while converting a Hamamatsu sample from https://openslide.cs.cmu.edu/download/openslide-testdata/Hamamatsu/, bfconvert populates PixelSpacing as follows, which exceeds the limit of 16 characters for the DS DICOM VR.

 (0028,0030) DS [4.564125969876768E-4\4.550625711035267E-4] #  42, 2 PixelSpacing

[melissalinkert]

Thanks, @arngaillard and @fedorov. #4379 is one way to resolve this, and is something we're evaluating for the next release of Bio-Formats. Any feedback on that change would be welcome.